No. 5 Drilled Stopper

Used to provide a positive seal on your carboy. Drilled hole is compatible with standard airlocks. Top Diameter: 1.048" Bottom Diameter: 0.909" Compatible with: older models of Big Mouth Bubbler® EVO 2 w/screw-on lid & Little Big Mouth Bubbler® Not sure if this is the correct stopper for your purposes? Consult our stopper information table below:   Stopper Type Compatible With: No. 2 Drilled Stopper Standard Beer bottles No. 5 Drilled Stopper Big Mouth Bubbler® EVO 2 w/screw-on lid (older EVO 2 models) & Little BMB No. 6 Stopper Drilled or Solid 1 Gallon Jugs No. 6.5 Stopper Drilled or Solid Glass carboys, Big Mouth Bubbler® plastic (5 or 6.5 gallon) or EVO 2 w/ Universal Lid. Ideal fit is 6 gallon carboy. No. 7 Drilled Stopper 5 Gallon glass carboys No. 10 Drilled Stopper PET Plastic Carboy  5 or 6 gallon Small Universal Stopper - Drilled or Solid Glass Carboys (3, 5, 6, 6.5), Big Mouth Bubbler® Plastic 5 or 6.5 gallon or EVO 2 w/ Universal Lid. Medium Universal Stopper - Drilled or Solid PET Plastic Carboy  5 or 6 gallon